/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
    background: #eef2f5;
    color: #1e2a36;
    line-height: 1.5;
    font-size: 16px;
}

/* ===== ÊÎÍÒÅÉÍÅÐ ===== */
.document {
    max-width: 1280px;
    margin: 32px auto;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* ===== ØÀÏÊÀ ===== */
.header {
    padding: 20px 32px;
    border-bottom: 2px solid #dce4ec;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    background: #ffffff;
}

.logo img {
    height: 52px;
    width: auto;
}

.company {
    text-align: right;
    font-size: 13px;
    color: #5f7f9f;
    line-height: 1.4;
}

.company strong {
    font-size: 15px;
    color: #1e4663;
}

/* ===== ÍÀÂÈÃÀÖÈß ===== */
.nav {
    background: #1e2c3a;
    padding: 0 32px;
}

.nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
}

.nav ul li a {
    display: block;
    padding: 14px 28px;
    color: #ccd7e2;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.3px;
    border-bottom: 2px solid transparent;
    transition: 0.15s;
}

.nav ul li a:hover {
    color: #ffffff;
    border-bottom-color: #6f9fbf;
}

/* ===== ÎÑÍÎÂÍÎÉ ÊÎÍÒÅÍÒ ===== */
.main {
    padding: 40px 32px;
}

/* ===== ÕËÅÁÍÛÅ ÊÐÎØÊÈ ===== */
.path {
    font-size: 12px;
    color: #7e95ab;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.path a {
    color: #2c5f8a;
    text-decoration: none;
}

.path a:hover {
    text-decoration: underline;
}

/* ===== ÇÀÃÎËÎÂÊÈ ===== */
h1 {
    font-size: 26px;
    font-weight: 600;
    color: #1a3348;
    margin-bottom: 8px;
}

.artikul {
    font-size: 13px;
    color: #6c8dae;
    margin-bottom: 32px;
    border-left: 3px solid #8eacc9;
    padding-left: 14px;
}

/* ===== ÎÏÈÑÀÍÈÅ ===== */
.full-description {
    margin-bottom: 32px;
    line-height: 1.6;
    font-size: 16px;
    color: #2c3e50;
    background: #fafcfd;
    padding: 20px 24px;
    border-left: 3px solid #2c5f8a;
}

.full-description strong {
    color: #1e4663;
}

/* ===== ÑÅÒÊÀ ÒÎÂÀÐÀ ===== */
.product-row {
    display: flex;
    gap: 48px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.image-col {
    flex: 0 0 280px;
}

.image-box {
    border: 1px solid #e2e8f0;
    padding: 20px;
    background: #fefefe;
    text-align: center;
}

.image-box img {
    max-width: 100%;
    height: auto;
}

.material-badge {
    font-size: 12px;
    font-weight: 600;
    color: #1e4663;
    background: #eef3fc;
    display: inline-block;
    padding: 5px 12px;
    margin-top: 14px;
    letter-spacing: 0.3px;
}

.params-col {
    flex: 1;
    min-width: 300px;
}

/* ===== ÖÅÍÀ È ÊÎÍÒÀÊÒÛ ===== */
.order-block {
    background: #f8fafd;
    border: 1px solid #e2e8f0;
    padding: 20px 24px;
    margin-bottom: 0;
}

.price {
    font-size: 32px;
    font-weight: 700;
    color: #1e4663;
}

.price small {
    font-size: 15px;
    font-weight: 400;
    color: #5f7f9f;
}

.delivery-note {
    font-size: 14px;
    color: #2c5f8a;
    margin: 10px 0 0;
}

.contacts-block {
    font-size: 14px;
    color: #4a6275;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid #e2e8f0;
}

.contacts-block a {
    color: #2c5f8a;
    text-decoration: none;
}

.contacts-block a:hover {
    text-decoration: underline;
}

.contacts-block strong {
    color: #1e4663;
}

/* ===== ÊÐÀÒÊÈÅ ÕÀÐÀÊÒÅÐÈÑÒÈÊÈ ===== */
.quick-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 24px;
    margin: 24px 0 0;
}

.quick-specs div {
    font-size: 15px;
    padding: 6px 0;
    border-bottom: 1px dotted #e6edf4;
}

.quick-specs span:first-child {
    font-weight: 600;
    color: #2c3e50;
    display: inline-block;
    width: 150px;
}

/* ===== ÇÀÃÎËÎÂÎÊ ÕÀÐÀÊÒÅÐÈÑÒÈÊ ===== */
.specs-title {
    font-size: 20px;
    font-weight: 600;
    margin: 40px 0 20px 0;
    color: #1e4663;
    border-bottom: 2px solid #dce5ed;
    padding-bottom: 10px;
}

/* ===== ÒÀÁËÈÖÀ ÕÀÐÀÊÒÅÐÈÑÒÈÊ ===== */
.specs-table {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 6px 40px;
    background: #fefefe;
    border: 1px solid #eef2f6;
    padding: 24px 28px;
}

.spec-item {
    display: flex;
    font-size: 14px;
    padding: 8px 0;
    border-bottom: 1px solid #f0f4f9;
}

.spec-item .label {
    width: 200px;
    font-weight: 600;
    color: #2c5f8a;
}

.spec-item .value {
    color: #1e2f3c;
}

/* ===== ÄÎÏÎËÍÈÒÅËÜÍÀß ÈÍÔÎÐÌÀÖÈß ===== */
.tech-note {
    background: #f9fbfd;
    border: 1px solid #e2e8f0;
    padding: 18px 24px;
    margin: 28px 0;
    font-size: 15px;
    line-height: 1.55;
}

/* ===== ÑÑÛËÊÈ ÍÀ ÄÎÊÓÌÅÍÒÛ ===== */
.doc-link {
    margin: 20px 0 24px;
}

.doc-link a {
    color: #2c5f8a;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-bottom: 1px solid #bfd4e8;
    padding-bottom: 2px;
}

.doc-link a:hover {
    border-bottom-color: #2c5f8a;
}

/* ===== ÑÅÐÒÈÔÈÊÀÒÛ ===== */
.certificates {
    display: flex;
    gap: 32px;
    margin: 32px 0 16px;
    flex-wrap: wrap;
    align-items: flex-start;
}

.certificates img {
    height: 180px;
    width: auto;
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}

.certificates img:hover {
    transform: scale(1.02);
}

/* ===== ÔÓÒÅÐ ===== */
.footer {
    background: #1e2c3a;
    padding: 28px 32px;
    font-size: 13px;
    color: #a0b3c2;
    text-align: center;
    border-top: 1px solid #2a3a48;
}

.footer-links {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 36px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.footer-links li a {
    color: #ccd7e2;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
}

.footer-links li a:hover {
    color: #ffffff;
}

/* ===== ÀÄÀÏÒÈÂÍÎÑÒÜ ===== */
@media (max-width: 860px) {
    .specs-table {
        grid-template-columns: 1fr;
    }
    
    .product-row {
        flex-direction: column;
        gap: 28px;
    }
    
    .main {
        padding: 24px 20px;
    }
    
    .header {
        padding: 16px 20px;
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .company {
        text-align: center;
    }
    
    .quick-specs {
        grid-template-columns: 1fr;
    }
    
    .certificates img {
        height: 140px;
    }
    
    h1 {
        font-size: 22px;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    .full-description {
        font-size: 14px;
        padding: 16px;
    }
    
    .spec-item {
        font-size: 13px;
        flex-direction: column;
    }
    
    .spec-item .label {
        width: auto;
        margin-bottom: 4px;
    }
    
    .footer-links {
        gap: 20px;
    }
}